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I would like to know what the Euclidean-normalized and differential source counts mean in "Euclidean-normalized differential source counts".

It would be great to hear a) a clear definition and b) an explanation on university student level.

The term is used in many papers. For instance, in the abstract of Grant et al. 2010: The DRAO Planck Deep Fields: The Polarization Properties of Radio Galaxies at 1.4 GHz

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  • $\begingroup$ "Differential" number count refers to the number between flux density S and dS. I think "Euclidean-normalized" just refers to the fact that the Stokes vector is normalized, using Euclidean geometry. But I haven't heard the term before, so I'll let some else answer. $\endgroup$
    – pela
    Jul 23 '21 at 12:14

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